NXP driver chips make HF-TL lamps dimmable
Based on NXP GreenChip technology, the new family of fluorescent driver ICs consist of non-dimmable mainstream (UBA2015), dimmable (UBA2015A), and dimmable-boosted (UBA2016A) solutions, supporting all common lamp types (T4, T5, T8, T12) and lamp configurations, including multi-lamp and multi-power solutions. The ICs drive a half-bridge circuit made of two MOSFETs with a supply voltage of up to 600 V and a PFC stage using one MOSFET.
The family of fluorescent driver ICs also features very low standby power levels (˂100 mW), which further enhances energy efficiency. The many built-in protections support all standards, and meet industry requirements for reliability (including end-of-life protections) and performance. The ICs are available in both SO and DIP packages, supporting an easy and fast design-in. All products feature the adjustable current controlled preheat and accurate lamp current control (±1 percent).
Datapoint Research forecasts a shift from magnetic ballasts (57% in 2011) to electronic ballasts (75% in 2017) in the global fluorescent TL market, due to the higher efficiency enabled by IC-based electronic ballasts, which operate on higher switching frequencies, mainly for T4 and T5 lamp types.
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